I think they are doing like CP did with that odd radial depth--think it is a Diamond thing--why?? Who knows!! Total Seal is the go to for any rings and remember they sell Lots of rings not just gapless

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I have always had a fascination with fast cars at the expense of more normal character development

Ever since Diamond was aquired their shipping and QC has been off the mark.I'm sure it will level off.

Aquired by management that do not know anything about making pistons, or the piston business. Key personnel that do will leave, personnel that can help won't be brought in. Machining, QC processes, and costs will be cut, and quality will suffer. CP got real busy soon after the below announcement, racers have seen this story play out over and over.

Talked Kevin at Total Seal today, less than 3 mi he gave me a part # for the rings that I need, they come in a set. Told me that Diamond makes a lot of custom piston to fit their "advanced profile" ring sets.Thanks for all your help, I learned something new! Will never make this mistake again.

DO NOT CUT THE RINGS... I'd simply contact Diamond and discuss the matter with them.

I'e been working for a major global piston ring manufacturer for past 12 years... interesting things I've learned!

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Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!